Castored base for a chair



FIG. 1 is a perspective view of a castored base for a chair;

FIG. 2 is an elevated left side view of the castored base shown in FIG.1;

FIG. 3 is an elevated right side view of the castored base shown in FIG.1;

FIG. 4 is an elevated front view of the castored base shown in FIG. 1;

FIG. 5 is an elevated back view of the castored base shown in FIG. 1;

FIG. 6 is a top plan view of the castored base shown in FIG. 1; and,

FIG. 7 is a bottom plan view of the castored base shown in FIG. 1.

The ornamental design for a castored base for a chair, as shown anddescribed.